Wemos and DS3231 RTC example

The DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal.
The device incorporates a battery input, and maintains accurate timekeeping when main power to the device is interrupted.Features

1 comment to Wemos and DS3231 RTC example

Hi, I read your text about RTC and its connection to Wemos. The RTC has the SQW pin, which is used to wake Arduin by interrupt, to the INT INT (interrupt). Wemos pin INT is bountiful. Is it possible to wake it up with (external) RTC? I do not mean deep sleep mode and timing using the Wemos internal RTC board, but wake up in eg a preset time by interrupting. Thank you